package com.source.nioatguiguday2;

import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
import java.nio.channels.ServerSocketChannel;
import java.nio.channels.SocketChannel;
import java.nio.file.Paths;
import java.nio.file.StandardOpenOption;

import org.junit.Test;

public class TestBlockingNIO2 {

	//客户端
	@Test
	public void client() throws IOException{
		SocketChannel sChannel = SocketChannel.open(new InetSocketAddress("127.0.0.1", 9898));

		FileChannel inChannel = FileChannel.open(Paths.get("1.jpg"), StandardOpenOption.READ);

		ByteBuffer buf = ByteBuffer.allocate(1024);

		while(inChannel.read(buf) != -1){
			buf.flip();
			sChannel.write(buf);
			buf.clear();
		}

		sChannel.shutdownOutput();

		//接收服务端的反馈
		int len = 0;
		while((len = sChannel.read(buf)) != -1){
			buf.flip();
			System.out.println(new String(buf.array(), 0, len));
			buf.clear();
		}

		inChannel.close();
		sChannel.close();
	}

	//服务端
	@Test
	public void server() throws IOException{
		ServerSocketChannel ssChannel = ServerSocketChannel.open();

		FileChannel outChannel = FileChannel.open(Paths.get("2.jpg"), StandardOpenOption.WRITE, StandardOpenOption.CREATE);

		ssChannel.bind(new InetSocketAddress(9898));

		SocketChannel sChannel = ssChannel.accept();

		ByteBuffer buf = ByteBuffer.allocate(1024);

		while(sChannel.read(buf) != -1){
			buf.flip();
			outChannel.write(buf);
			buf.clear();
		}

		//发送反馈给客户端
		buf.put("服务端接收数据成功".getBytes());
		buf.flip();
		sChannel.write(buf);

		sChannel.close();
		outChannel.close();
		ssChannel.close();
	}

}
